A battery compartment positioning and locking mechanism for a fast-battery-changing pure electric excavator

Abstract

The present invention relates to a battery compartment positioning and locking mechanism for a fast-battery-changing pure electric excavator, comprising a battery compartment, a sling frame and a bearing platform, wherein the battery compartment is placed in the sling frame, and two sets of guide devices are fixed to each side of the sling frame, a suspended ceiling is arranged above the sling frame, a lifting ring is arranged in the middle of the upper side of the suspended ceiling, and an adjustment box is fixed to the middle of the lower side of the suspended ceiling, a limiting plate is arranged between the guide wheel and the guide frame, three sliding grooves are distributed in an annular manner on the limiting plate, a sliding block is slidably connected in the sliding groove, a push rod is fixed to the side of the sliding block close to the edge of the guide wheel, a locking rod is arranged at the end of the pushing rod away from the sliding block, and a wavy limiting groove is arranged on the side of the guide wheel; the pulling rope is tightened by the sliding rod and the sliding plate to separate the locking rod from the limiting groove, so as to unlock the guide wheel, so as to facilitate positioning the sling frame by using the guide device, and then the elastic force of the spring piece pushes the locking rod into the limiting groove, so as to lock the sling frame on the bearing platform.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile manufacturing equipment, and in particular relates to a battery compartment positioning and locking mechanism for a quick-battery-changing pure electric excavator. Background Art

[0002] At present, the mainstream configuration scheme in the electric excavator market is the charging mode. Due to the limited battery energy storage, there is a problem of frequent charging, which affects the effective operating time of the excavator. Directly replacing the power battery pack to provide power for the electric mining car saves the waiting time of the excavator during the charging process and can effectively increase the operating time of the excavator. Therefore, how to quickly improve the replacement of batteries for pure electric excavators has become a research direction.

[0003] The battery compartment is arranged in the hoist frame, and the battery compartment can be quickly replaced through the hoist frame to improve the working efficiency of the pure electric excavator. In order to quickly and accurately install the battery compartment on the pure electric excavator, it is necessary to use a positioning device to position the battery compartment during the installation process. In addition, after the installation is completed, the battery compartment needs to be locked to avoid the position of the battery compartment changing during the operation of the pure electric excavator, resulting in poor contact and affecting the operation of the pure electric mining truck. In the existing positioning and locking devices, the positioning and locking components are independent of each other and need to be operated separately by staff. The process is complicated and the efficiency is low. In view of the shortcomings of the existing technology, further improvements are needed. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a battery compartment positioning and locking mechanism for a pure electric excavator with quick battery replacement to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a battery compartment positioning and locking mechanism for a pure electric excavator with fast battery replacement, comprising a battery compartment, a sling frame and a load-bearing platform, wherein the sling frame is a box structure welded from hollow tubes, the battery compartment is placed in the sling frame, two sets of guide devices are fixed on each side of the sling frame, a suspended ceiling is arranged above the sling frame, the suspended ceiling is an inverted V-shaped structure, and the left and right ends of the suspended ceiling are respectively fixedly connected to the left and right sides of the sling frame, a lifting ring is arranged in the middle of the upper side of the suspended ceiling, and an adjustment box is fixed in the middle of the lower side of the suspended ceiling.

[0006] The guide device includes two guide frames and a guide wheel, the guide frames are fixedly connected to the hanger frame, and the guide wheels are arranged between the guide frames, and the front and rear sides of the guide wheels are rotatably connected to the guide frames on the corresponding sides through a rotating shaft, a limit plate is arranged between the guide wheel and the guide frame, the limit plate is fixedly connected to the guide frame, and three slide grooves are distributed in an annular manner on the limit plate, a slider is slidably connected in the slide groove, a push rod is fixed on the side of the slider close to the edge of the guide wheel, a locking rod is arranged on the end of the push rod away from the slider, a wavy limit groove is arranged on the side of the guide wheel, the locking rod is inserted into the limit groove, a spring sheet is arranged on the side of the push block away from the push rod, one end of the spring sheet is fixedly connected to the push block, and the other end of the spring sheet is fixedly connected to the middle of the limit plate.

[0007] A positioning block is fixed on the limit plate, and a pull rope is provided on the positioning block. One end of the pull rope is fixedly connected to the positioning block, and the pull rope passes through the slider, the positioning block, the sling frame and the ceiling in sequence, and the other end of the pull rope passes into the adjustment box, and a slide plate is slidably connected in the adjustment box, the lower side of the slide plate is fixedly connected to the pull rope, and a slide rod is fixed on the upper side of the slide plate, the upper end of the slide rod passes through the ceiling, and the upper end of the slide rod is fixedly connected to the lifting ring.

[0008] Preferably, the bearing platform is fixed on the body of the electric excavator, and two guide grooves are fixed on each edge of the upper side of the bearing platform, the guide grooves correspond to the guide frames one by one, the inner sides of the guide grooves are open, and the upper ends of the guide grooves are bent toward the outer sides of the bearing platform.

[0009] Preferably, the interior of the guide groove is a sawtooth structure, and the side surface of the guide wheel is a sawtooth structure, and the guide groove is adapted to the guide wheel.

[0010] The beneficial effects of the present invention are as follows: under the action of the gravity of the battery compartment, the lifting ring tightens the drawstring through the slide bar and the slide plate, and the drawstring is used to drive the slider to slide, compressing the spring sheet so that the locking rod is separated from the limiting groove, thereby unlocking the guide wheel and allowing the guide wheel to rotate freely, so that the guide wheel is convenient to contact with the guide groove first and mechanically descend along the shape trajectory of the guide groove, and the guide device is used to position the sling frame until the bottom of the sling frame contacts the bearing platform, so that the sling frame is quickly and accurately placed on the bearing platform; after the sling frame is completely placed on the bearing platform, the elastic force of the spring sheet automatically pushes the slider to slide, and pushes the locking rod into the limiting groove, and the guide wheel is automatically locked by the cooperation of the locking rod and the limiting groove, and the rotation of the guide wheel is limited, and the serrated structure on the side of the guide groove and the guide wheel cooperates to lock the sling frame on the bearing platform; and when the battery is replaced again, when the battery compartment of the pure electric excavator is moved by a lift with a hook, the drawstring is tightened under the action of the gravity of the battery compartment to drive the locking rod to separate from the limiting groove, thereby automatically unlocking the guide wheel, and facilitating the removal of the battery compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the main structure diagram of the present invention;

[0012] Figure 2 This is a structural diagram of the sling frame of the present invention;

[0013] Figure 3 It is a front view of the sling frame of the present invention;

[0014] Figure 4 This is a structural diagram of the load-bearing platform of the present invention;

[0015] Figure 5 For the present invention Figure 3 Structure diagram of the middle A part;

[0016] Figure 6 This is a structural diagram of the guide wheel of the present invention;

[0017] Figure 7 For the present invention Figure 3 Structural diagram of part B in the middle.

[0018] Numbers in the figure: 1 battery compartment; 2 lifting device frame; 3 bearing platform; 4 guide device; 5 ceiling; 6 lifting ring; 7 adjustment box; 8 guide groove; 9 guide frame; 10 guide wheel; 1001 limit groove; 11 limit plate; 1101 slide groove; 12 slider; 13 push rod; 1301 locking rod; 14 spring piece; 15 positioning block; 16 pull rope; 17 slide plate; 18 slide rod. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0020] like Figure 1-7 As shown, a battery compartment positioning and locking mechanism for a pure electric excavator with quick battery replacement includes a battery compartment 1, a sling frame 2 and a bearing platform 3. The sling frame 2 is a box structure formed by welding hollow tubes. The battery compartment 1 is placed in the sling frame 2. Two sets of guide devices are fixed on each side of the sling frame 2. A ceiling 5 is arranged above the sling frame 2. The ceiling 5 is an inverted V-shaped structure, and the left and right ends of the ceiling 5 are respectively fixedly connected to the left and right sides of the sling frame. A lifting ring 6 is arranged in the middle of the upper side of the ceiling 5, and an adjustment box 7 is fixed in the middle of the lower side of the ceiling 5.

[0021] In this embodiment, the guide device includes two guide frames 9 and a guide wheel 10, the guide frames 9 are fixedly connected to the hanger frame 2, and the guide wheels 10 are arranged between the guide frames 9, and the front and rear sides of the guide wheels 10 are rotatably connected to the guide frames 9 on the corresponding side through a rotating shaft, a limit plate 11 is arranged between the guide wheel 10 and the guide frame 9, the limit plate 11 is fixedly connected to the guide frame 9, and three slide grooves 1101 are distributed in an annular manner on the limit plate 11, a slider 12 is slidably connected in the slide groove 1101, a push rod 13 is fixed on the side of the slider 12 close to the edge of the guide wheel 10, and a locking rod 1301 is arranged at the end of the push rod 13 away from the slider 12, a wavy limit groove 1001 is arranged on the side of the guide wheel 10, and the locking rod 1301 is inserted into the limit groove 1001, and a spring piece 14 is arranged on the side of the push block 12 away from the push rod 13, one end of the spring piece 14 is fixedly connected to the push block 12, and the other end of the spring piece 14 is fixedly connected to the middle part of the limit plate 11.

[0022] In this embodiment, a positioning block 15 is fixed on the limit plate 11, and a pull rope 16 is arranged on the positioning block 15. One end of the pull rope 16 is fixedly connected to the positioning block 15, and the pull rope 16 passes through the slider 12, the positioning block 15, the hanger frame 2 and the ceiling 5 in sequence, and the other end of the pull rope 16 passes into the adjustment box 7, and a slide plate 17 is slidably connected in the adjustment box 7. The lower side of the slide plate 17 is fixedly connected to the pull rope 16, and a slide rod 18 is fixed on the upper side of the slide plate 17, and the upper end of the slide rod 18 passes through the ceiling 5, and the upper end of the slide rod 18 is fixedly connected to the lifting ring 6.

[0023] In this embodiment, the supporting platform 3 is fixed on the body of the electric excavator, and two guide grooves 8 are fixed on each edge of the upper side of the supporting platform 3. The guide grooves 8 correspond one-to-one to the guide frames 4. The inner sides of the guide grooves 8 are open, and the upper ends of the guide grooves 8 are bent toward the outer sides of the supporting platform 3 for easy guidance.

[0024] In this embodiment, the interior of the guide groove 4 is a sawtooth structure, and the side surface of the guide wheel 10 is a sawtooth structure, and the guide groove 4 is adapted to the guide wheel 10 .

[0025] The working principle of the present invention is as follows: when the battery of the pure electric excavator needs to be replaced, the battery compartment 1 of the pure electric excavator is replaced by a lift with a hook, and the hook of the lift is hung on the lifting ring 6. Under the action of the gravity of the battery compartment 1, the lifting ring 6 tightens the pull rope 16 through the slide bar 18 and the slide plate 17, and the pull rope 16 is used to drive the slide block 12 to slide, compressing the spring piece 14, so that the locking rod 1301 is separated from the limiting groove 1001, and the guide wheel 10 is unlocked. Then the lift is lowered, and the sling frame 2 with the battery compartment 1 is placed on the bearing platform 3. During this process, the guide wheel 10 on the sling frame 2 first contacts the guide groove 8 and mechanically descends along the shape trajectory of the guide groove 8, and the guide device 4 is used to position the sling frame 2 until the bottom of the sling frame 2 contacts the bearing platform 3;

[0026] After the sling frame 2 is completely placed on the load-bearing platform 3, the lifting ring 6 is removed from the hook of the elevator, and the elastic force of the spring 14 pushes the slider 12 to slide, pushing the locking rod 1301 into the limiting groove 1001, and the guide wheel 10 is locked by utilizing the cooperation of the locking rod 1301 and the limiting groove 1001. Since the inside of the guide groove 4 is a serrated structure and the side of the guide wheel 10 is a serrated structure, the guide groove 4 is adapted to the guide wheel 10, and the serrated structures on the guide groove 4 and the side of the guide wheel 10 cooperate to lock the sling frame 2 on the load-bearing platform 3.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery compartment positioning and locking mechanism for a fast-battery-changing pure electric excavator, comprising a battery compartment, a sling frame and a load-bearing platform, characterized in that: The hanger frame is a box structure welded from hollow tubes, and the battery compartment is placed in the hanger frame. Two sets of guide devices are fixed on each side of the hanger frame, and a suspended ceiling is arranged above the hanger frame. The suspended ceiling is an inverted V-shaped structure, and the left and right ends of the suspended ceiling are respectively fixedly connected to the left and right sides of the hanger frame, a hanging ring is arranged in the middle of the upper side of the suspended ceiling, and an adjustment box is fixed in the middle of the lower side of the suspended ceiling; the guide device includes two guide frames and a guide wheel, the guide frame is fixedly connected to the hanger frame, and the guide wheel is arranged between the two guide frames, and the front and rear sides of the guide wheel are rotatably connected to the guide frame on the corresponding side through a rotating shaft, a limit plate is arranged between the guide wheel and the guide frame, the limit plate is fixedly connected to the guide frame, and three slide grooves are distributed in an annular manner on the limit plate, a slider is slidably connected in the slide groove, a push rod is fixed on the side of the slider close to the edge of the guide wheel, and a push rod is fixed on the side of the push rod away from the slider A locking rod is provided at the end, a wavy limiting groove is provided on the side of the guide wheel, the locking rod is inserted into the limiting groove, a spring sheet is provided on the side of the push block away from the push rod, one end of the spring sheet is fixedly connected to the push block, and the other end of the spring sheet is fixedly connected to the middle of the limiting plate, a positioning block is fixed on the limiting plate, a pull rope is provided on the positioning block, one end of the pull rope is fixedly connected to the positioning block, the pull rope passes through the slider, the positioning block, the sling frame and the ceiling in sequence, and the other end of the pull rope passes into the adjusting box, a slide plate is slidably connected in the adjusting box, the lower side of the slide plate is fixedly connected to the pull rope, and a slide bar is fixed on the upper side of the slide plate, the upper end of the slide bar passes through the ceiling, and the upper end of the slide bar is fixedly connected to the lifting ring, the bearing platform is fixed on the body of the electric excavator, and two guide grooves are fixed on each edge of the upper side of the bearing platform, the guide grooves correspond to the guide frames one by one, the inner sides of the guide grooves are open, and the upper ends of the guide grooves are bent toward the outer sides of the bearing platform.

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